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Isoprenoid emission in hygrophyte and xerophyte European woody flora: ecological and evolutionary implications

  • Metaadatok
Tartalom: http://real.mtak.hu/9739/
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published



Type = Article
Cím:
Isoprenoid emission in hygrophyte and xerophyte European woody flora: ecological and evolutionary implications
Létrehozó:
Loreto, F.
Bagnoli, F.
Calfapietra, C.
Cafasso, D.
De Lillis, M.
Filibeck, G.
Fineschi, S.
Guidolotti, G.
Sramkó, Gábor
Tökölyi, Jácint
Ricotta, C.
Kiadó:
Wiley
Dátum:
2014
Téma:
QK10 Plant physiology / növényélettan
QK30 Plant ecology. Plant ethology / növényökológia
QK50 Plant geography (phytogeography) / növényföldrajz
Tartalmi leírás:
Aim
The relationship between isoprenoid emission and hygrophily was investigated in woody plants of the Italian flora, which is representative of European diversity.
Methods
Volatile isoprenoids (isoprene and monoterpenes) were measured, or data collected from the literature, for 154 species native or endemic to the Mediterranean. The Ellenberg indicator value for moisture (EIVM) was used to describe plant hygrophily. Phylogenetic analysis was carried out at a broader taxonomic scale on 128 species, and then refined on strong isoprene emitters (Salix and Populus species) based on isoprene synthase gene sequences (IspS).
Results
Isoprene emitters were significantly more common and isoprene emission was higher in hygrophilous EIVM classes, whereas monoterpene emitters were more widespread and monoterpene emission was higher in xeric classes. However, when controlling for phylogeny, isoprene emission was not associated with EIVM, possibly due to the large presence of Salicaceae among hygrophilous isoprene emitters. Moreover, the distribution of isoprene emitters among EIVM classes was not related to IspS-based phylogenesis in Populus and Salix, suggesting that the gene has not undergone evolution linked to ecological pressure. In contrast, the monoterpene emission pattern is independent of phylogeny, suggesting that the evolution of monoterpenes is associated with transitions to more xeric habitats.
Main conclusions
Our results reveal an interesting ecological pattern linking isoprenoids and water availability. We suggest that isoprene is a trait that: (1) evolved in plants adapted to high water availability; (2) is replaced by more effective protection mechanisms, e.g. more stable isoprenoids, in plants adapting to more xeric environments; and (3) being strongly constrained by phylogeny, persists in Salicaceae adapted to more xeric environments.
Nyelv:
magyar
Típus:
Article
PeerReviewed
info:eu-repo/semantics/article
Formátum:
text
Azonosító:
Loreto, F. and Bagnoli, F. and Calfapietra, C. and Cafasso, D. and De Lillis, M. and Filibeck, G. and Fineschi, S. and Guidolotti, G. and Sramkó, Gábor and Tökölyi, Jácint and Ricotta, C. (2014) Isoprenoid emission in hygrophyte and xerophyte European woody flora: ecological and evolutionary implications. Global Ecology and Biogeography, 23 (3). pp. 334-345. ISSN 1466-822X
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